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专利名称：Process for the preparation of a
thermoplastic moulding mass
发明人：EICHENAUER, HERBERT, DR.,PISCHTSCHAN,
ALFRED, DR.,OTT, KARL-HEINZ, DR.
申请号：EP87109594.9申请日：19870703公开号：EP0253236A3公开日：191115
摘要：process for the production of a thermoplastic formmasse from 10 to 65%.-% ofat least one pfropfpolymeri\sats, which is available throughemulsionspoly\merisation of styrene and acrylonitrile in the
gewichts\verh\ältnis 90: 10 to 50: 50, and styrene in whole or in part can bereplaced by a - methylstyrol or methyl methacrylate.in the presence of at least onekautschukgrundlage and with the massenver\h\ältnis of the monomers to thekautschukpolymerisat 20: 80 to 70: 30 to 35% by weight, and 90.-% of styrene andacrylonitrile in the weight ratio copolymerisats from 90: 10 to 50 \\/ 50, and the styrene inwhole or in part by a - methylstyrol or methyl methacrylate can be replaced, and tomanufacture the pfropfpolymerisats the pfropfmonomeren and 0.05 to 1.00 wt. parts(per 10 0%.parts pfropfmonomer) of a mercaptans phased over a period to the latex ofthe kautschukgrundlage, which, at least in the first half of the period in each time interval\Δtn + 1 added monomer\teilmenge the 0.30 to 0.in the previous time interval95fache \Δtn monomermenge is added and the entire period n time intervals, with n= 3 to 30 and each time interval \Δt comprises 5 to 100 minutes in length.
申请人：BAYER AG
地址：51368 Leverkusen DE
国籍：DE
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